WO2010133181A1 - Procédé de gestion de connexion de données d'accès multiples, système et dispositif correspondants - Google Patents

Procédé de gestion de connexion de données d'accès multiples, système et dispositif correspondants Download PDF

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Publication number
WO2010133181A1
WO2010133181A1 PCT/CN2010/073046 CN2010073046W WO2010133181A1 WO 2010133181 A1 WO2010133181 A1 WO 2010133181A1 CN 2010073046 W CN2010073046 W CN 2010073046W WO 2010133181 A1 WO2010133181 A1 WO 2010133181A1
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WIPO (PCT)
Prior art keywords
gateway
access
data
user terminal
address
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PCT/CN2010/073046
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English (en)
Chinese (zh)
Inventor
胡颖
Original Assignee
华为技术有限公司
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Publication of WO2010133181A1 publication Critical patent/WO2010133181A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H04W8/265—Network addressing or numbering for mobility support for initial activation of new user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5007—Internet protocol [IP] addresses
    • H04L61/5014—Internet protocol [IP] addresses using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a multi-access data connection management method, system, and related device. Background technique
  • a user terminal can be connected through multiple access networks.
  • the data gateway is thus connected to the data network.
  • a user terminal can simultaneously access multiple different types of access networks, for example: simultaneously accessing a Wireless Local Area Network (WLAN) network and a Long Term Evolution (LTE) network, and The two access connections share the same data connection, that is, the IP connection, and different service flows in the same data connection of the mobile terminal can be transmitted through different wireless networks.
  • WLAN Wireless Local Area Network
  • LTE Long Term Evolution
  • a data connection of a user is accessed through only one access network.
  • the user terminal can obtain an IP address assigned by the data gateway through a Dynamic Host Configuration Protocol (DHCP) mechanism.
  • DHCP Dynamic Host Configuration Protocol
  • the data gateway After the IP address is assigned to the user terminal, the data gateway notifies the policy control entity of the information of the newly added IP address of the data connection by using the address update information.
  • the user terminal accesses the same data gateway through multiple access gateways.
  • the service data of the user terminal cannot be transmitted through the tunnels of multiple access networks.
  • the embodiment of the present invention provides a multi-access data connection management method, system, and related device, such that when a user terminal accesses the same data gateway through multiple access gateways, the multiple access gateways may acquire user terminals.
  • the IP address so that the service data of the user terminal can be transmitted through the tunnel of multiple access networks.
  • a multi-access data connection management method when a user terminal accesses a data gateway through at least two access gateways, the method includes:
  • the data gateway receives a dynamic host configuration protocol DHCP Reques t message sent by the user terminal through the first access gateway;
  • the data gateway returns the allocated IP address to the user terminal by using the first access gateway; the data gateway sends the IP address to the user terminal to access other accesses of the data gateway except the first access gateway. Gateway.
  • a multi-access data connection management method when a user terminal accesses a data gateway through at least two access gateways, the method includes:
  • the data gateway receives the dynamic host configuration protocol DHCP Release message sent by the user terminal through the first access gateway, and instructs the data gateway to release the IP address of the user terminal;
  • the data gateway notifies the user terminal to access the access gateway of the data gateway other than the first access gateway to release the IP address.
  • a data gateway comprising: a receiving unit, a first sending unit, and a second sending unit, where the receiving unit is configured to receive a dynamic host configuration sent by the user terminal by using the first access gateway to perform a DHCP Reques t message;
  • the first sending unit is configured to return an allocated IP address to the user terminal by using the first access gateway;
  • the second sending unit is configured to send the IP address to a user terminal to access other access gateways of the data gateway except the first access gateway.
  • a policy control entity comprising: an address update information receiving unit, a third sending unit, wherein the address update information receiving unit is configured to receive address update information sent by a data gateway, where the address update information carries the data The IP address assigned by the gateway to the user terminal;
  • the searching unit is configured to search, according to the session information corresponding to the user terminal, an identifier of another access gateway of the data gateway that is connected to the data gateway except the first access gateway;
  • the third sending unit is configured to send, to the other access gateway, the IP address allocated for the user terminal.
  • a multi-access data connection management system comprising: at least two access gateways, a data gateway, wherein the user terminal accesses the data gateway through the at least two access gateways,
  • a first access gateway configured to forward a dynamic host configuration protocol DHCP Reques t message sent by the user terminal to the data gateway;
  • a data gateway configured to return, by using the first access gateway, an allocated IP address to the user terminal
  • a first access gateway configured to receive the IP address allocated by the data gateway, and send the IP address to the user terminal;
  • a data gateway configured to notify the user terminal of the IP address to access the access gateway of the data gateway except the first access gateway.
  • the user terminal accesses all the access gateways of the data gateway by using the IP address assigned by the data gateway to the user terminal, so that when the user terminal accesses the same data gateway through multiple access gateways, the multiple The access gateway can obtain the IP address of the user terminal, so that the service data of the user terminal can be transmitted through the tunnel of multiple access networks.
  • FIG. 1 is a schematic flowchart of a multi-access data connection management method according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of another multi-access data connection management method according to an embodiment of the present invention
  • 3 is a schematic flowchart of another multi-access data connection management method according to an embodiment of the present invention
  • FIG. 4 is a schematic flow chart of another multi-access data connection management method according to an embodiment of the present invention.
  • FIG. 5 is a schematic flow chart of another multi-access data connection management method according to an embodiment of the present invention.
  • FIG. 6 is a data gateway according to an embodiment of the present invention.
  • FIG. 7 is a policy control entity according to an embodiment of the present invention.
  • FIG. 8 is a multi-access data connection management system according to an embodiment of the present invention. detailed description
  • FIG. 1 is a schematic diagram of a data connection management method for multiple access according to an embodiment of the present invention, where the method includes:
  • Step 101 The data gateway receives the dynamic host configuration sent by the user terminal through the first access gateway, and sends a DHCP Reques t message;
  • Step 102 The data gateway returns an allocated IP address to the user terminal by using the first access gateway.
  • Step 103 The data gateway sends the IP address to the user terminal to access other access gateways of the data gateway except the first access gateway.
  • the user terminal accesses all the access gateways of the data gateway by using the IP address assigned by the data gateway to the user terminal, so that when the user terminal accesses the same data gateway through multiple access gateways, the multiple The access gateway can obtain the IP address of the user terminal, so that the service data of the user terminal can be transmitted through the tunnel of multiple access networks.
  • the user terminal can access the same data connection through different types of access networks, and different tunnel connections can be used.
  • 3rd Generation Partnership Project 3rd Generat ion
  • Par tnership Project 3GPP
  • 3GPP 3rd Generation Partnership Project
  • IPsec tunnel or Mobi le IP (MIP) tunnel of WLAN network IPsec tunnel or Mobi le IP (MIP) tunnel of WLAN network
  • Data path of WiMax network Non-3GPP access technology of next generation packet system (Evolved Packet System non-3GPP, EPS N3G) Proxy Mobi le IPv6 ( ⁇ GRE) tunnel, Dual-Stack Mobi le IPv6 (DSMIPv6) tunnel, MIPv4 tunnel, etc.
  • EPS N3G Non-3GPP access technology of next generation packet system
  • Proxy Mobi le IPv6 ⁇ GRE
  • DSMIPv6 Dual-Stack Mobi le IPv6
  • MIPv4 tunnel MIPv4 tunnel
  • the data connection is a connection for the user terminal to access a data network packet data network (Pcke t Da ta Ne t wo rk, PDN), such as an IP connection, a dual stack IP connection, a PDN connection, an IP-CAN, and the like.
  • Pcke t Da ta Ne t wo rk PDN
  • IP connection a connection for the user terminal to access a data network packet data network (Pcke t Da ta Ne t wo rk, PDN)
  • IP connection such as an IP connection, a dual stack IP connection, a PDN connection, an IP-CAN, and the like.
  • the network element corresponding to the access gateway in the embodiment of the present invention may be: a Serving Gateway (SGW) of the 3GPP network, a Serving GPRS Support Node (SGSN), and an access service network of the WiMax network (Access Services) Network Gateway, ASN GW); access gateway for WLAN network, Evolved Packet Data Gateway (ePDG), WLAN Access Gateway (WAG); packet data service node of 3GPP2 network (Packet) Data Serving Node, PDSN) GW, High Rate Packed Data Access Network Gateway (HRPD AN GW), High Speed Packet Data Network Service Gateway (HSPD), etc.
  • the corresponding network element of the data gateway may be a GPRS Gateway Support Node (GGSN) or a PDN GW.
  • the network element corresponding to the policy control entity may be a Polic and Charging Rule Functing (PCRF), a Policy Decision Function Entity (PDF), or the like.
  • PCRF Polic and Charging Rule Functing
  • PDF Policy Decision Function Entity
  • the user terminal accesses the same data network through two access networks as an example, and provides a data connection management method, but those skilled in the art can understand that For the case where the user terminal accesses the same data network through two or more access networks, a similar method can be adopted for the management of the data connection. For example, when the user terminal accesses the same data network through three access networks, the access connection of the user terminal corresponding to the third access network may be managed in the same manner as the second access network ( The access gateway of the third access network may be included to acquire or release the user terminal IP address).
  • the user terminal accesses the same data gateway through two access networks as an example. Then, the access terminal of the data gateway that accesses the data gateway other than the first access gateway is the second access gateway.
  • a multi-access data connection management method includes:
  • Step 201 The user terminal establishes a first access connection to the data network through the first access gateway, and the first access connection information is saved in the data gateway, where the first access connection information includes: a user terminal identifier, a data network Identifies the PDN ID, the access network type (Radio Acces s Technology, RAT), the data connection identifier, and the access gateway identifier. It should be noted that the first access connection information does not have to include all the above contents. In the manner, the first access connection information may include a part of the foregoing content;
  • Step 202 The user terminal establishes a second access connection for accessing the data network by using the second access gateway, and the second access connection information is saved in the data gateway.
  • the data gateway can associate two access connections by using the access connection information, for example: a data gateway.
  • the access connection information for example: a data gateway.
  • two access connections or data gateways associate two access connections according to the data connection identifier PDN ID, and the two access connections use the same user terminal IP address, corresponding to the same data connection.
  • Step 203 The user terminal sends a DHCP Di scovery message to the available DHCP server to allocate an IP address through the first access gateway. ;
  • a data connection may include multiple IP addresses, for example, one of IPv4 and IPv6.
  • the user terminal may send a DHCP Di scovery message through the first access gateway, requesting to allocate a new IP address.
  • Step 204 The data gateway receives the DHCP Di scovery message as the DHCP server, allocates an IP address to the user terminal, and carries the assigned IP address in the DHCP Offer message to the user terminal through the first access gateway, and the data gateway can be updated. Data connection information of the user terminal stored by itself;
  • Step 205 The user terminal extracts the IP address from the DHCP Offer message, and sends a DHCP Reques t message by using the first access gateway, where the DHCP Reques t message is used to request the data gateway, that is, the DHCP server, to use the IP address. ;
  • Step 206 The data gateway sends a DHCP ACK (Answer) message to the user terminal to carry the IP address by using the first access gateway, where the DHCP ACK message is used to confirm the IP address allocation to the user terminal.
  • a DHCP ACK (Answer) message
  • Step 207 The data gateway notifies the second access gateway of the IP address assigned to the user terminal according to the access connection information of the associated user terminal, and the data gateway may carry the IP address by using the address update information or the tunnel update information. ;
  • the data gateway associates the corresponding access connection information of the second access gateway according to the user terminal identifier and the data network identifier in steps 201 and 202; or the data gateway associates with the data connection identifier according to steps 201 and 202.
  • the corresponding access connection information of the second access gateway, the data gateway may obtain the identifier of the second access gateway from the associated access connection information.
  • Step 208 The second access gateway updates the IP address information of the user terminal.
  • the shell 'j if the multi-access network has the policy charging control function (PCC, Pol icy and Charging Control), the shell 'j:
  • the step 201 may further include: the data gateway establishing a session with the policy control entity, where the policy control entity may record the user terminal identifier, the data network identifier PDN ID, the IP address of the user terminal, and the data connection identifier;
  • the step 202 may further include: the second access gateway is a Bearer Binding and Event Reporting Funbench (BBERF), and the second access gateway is used in the embodiment of the present invention.
  • BBERF Bearer Binding and Event Reporting Funbench
  • Establishing a session with the policy control entity the policy control entity records session information, and the session information may include: a user terminal identifier, a PDN ID, an access network type RAT, a data connection identifier, or an access gateway identifier, etc., and the policy control entity identifies the user terminal by using The PDN ID will be associated with the session between the data gateway and the session with the second access gateway.
  • two or any one of the first access gateway and the second access gateway may be a policy enforcement point. Whereas, the policy control entity establishes a session with the policy enforcement point and associates the relationship between the policy execution point and the data gateway;
  • Step 205 may further include the step 205B: the data gateway sends the address update information to the policy control entity, where the address update information carries the IP address assigned to the user terminal.
  • the policy control entity updates the IP address information of the data connection corresponding to the user terminal according to the address update information;
  • step 207 can be replaced by step 207B.
  • Step 207B The policy control entity obtains the identifier or session of the associated second access gateway according to the association of step 202, and sends the IP address assigned to the user terminal to The second access gateway, the IP address may be carried by the address update information, and the second access gateway updates the access connection information with the user terminal according to the received IP address information of the user terminal. Further, the second access gateway may also update the user IP address information of the tunnel with the data gateway by sending connection update information to the data gateway.
  • the following describes the DHCP Di scovery, DHCP Offer, DHCP Di scovery, DHCP Reques t and DCHP ACK messages in the embodiment of the present invention, where the DHCP Di scovery message is a message sent by the user terminal through the access gateway, and the message is received.
  • the data gateway allocates an IP address to the user terminal, and is carried by the DHCP Offer message.
  • the user terminal receives the DHCP Of fer message sent by the data gateway, and sends a DHCP Reques t message to the data gateway to carry the data gateway to allocate to the user terminal.
  • the IP address, requesting to use the IP address, the data gateway returns a DCHP ACK message carrying the IP address, and determining that the user terminal uses the IP address. This description is equally applicable to other embodiments.
  • the embodiment of the invention provides a multi-access data connection management method, in which the network and the user terminal use the DHCP method to complete the IP address allocation, so that the access gateways of multiple access connections can obtain the IP allocated to the user terminal.
  • the address is such that the service data of the user terminal can be transmitted through a tunnel of multiple access networks.
  • another method for managing multiple access data connections includes:
  • Step 301 The user terminal establishes a first access connection to the data network through the first access gateway, and the first access connection information is saved in the data gateway, where the first access connection information includes: The identification, the data network identifier PDN ID, the access network type RAT, the data connection identifier, and the access gateway identifier, etc., it should be noted that the first access connection information does not have to include all the foregoing contents.
  • the first access connection information may include a part of the above content;
  • Step 302 The user terminal establishes a second access connection for accessing the data network by using the second access gateway, and the second access connection information is saved in the data gateway.
  • the data gateway can associate two access connections by using the access connection information, for example: a data gateway.
  • the access connection information for example: a data gateway.
  • two access connections or data gateways associate two access connections according to the data connection identifier PDN ID, and the two access connections use the same user terminal IP address, corresponding to the same data connection.
  • Step 303 The user terminal sends a DHCP Di scovery message to the available DHCP server through the first access gateway to request an IP address.
  • a data connection may include multiple IP addresses, for example, one of IPv4 and IPv6.
  • the user terminal may send a DHCP Di scovery message through the first access gateway, requesting to allocate a new IP address.
  • Step 304 The data gateway receives the DHCP Di scovery message as the DHCP server, allocates an IP address to the user terminal, and carries the assigned IP address in the DHCP Offer message to the user terminal through the first access gateway, and the data gateway can be updated. Data connection information of the user terminal stored by itself;
  • Step 305 The user terminal extracts the IP address from the DHCP Offer message, and the user terminal sends a DHCP Reques t message by using the first access gateway, where the DHCP Reques t message is used to request the data gateway, that is, the DHCP server. IP address;
  • Step 306 The data gateway sends a DHCP ACK (Answer) message to the user terminal to carry the IP address through the first access gateway, and confirms the IP address allocation.
  • a DHCP ACK Answer
  • Step 307 The user terminal sends a DHCP Di scovery message through the second access gateway, requesting to allocate an IP address, and the second access gateway forwards the DHCP Di scovery message to the data gateway.
  • Step 309 The user terminal extracts the IP address from the DHCP Offer message, and sends a DHCP Reques t message to the data gateway by using the second access gateway, where the DHCP Reques t message is used to request the data gateway DHCP server to use the IP address;
  • Step 310 The data gateway sends a DHCP ACK (Answer) message to the user terminal to carry the IP address by using the second access gateway, where the DHCP ACK message is used to confirm the IP address allocation to the user terminal, and the IP address and the step In 308, the data gateway allocates the same IP address to the user terminal.
  • a DHCP ACK Answer
  • step 307 and step 308 are optional steps, that is, in the multiple access network, after the user terminal obtains the IP address assigned by the data gateway through the first access gateway, the user terminal may directly pass
  • the second access gateway sends a DHCP Reques t message to the data gateway, where the message carries the IP address allocated by the data gateway returned by the first access gateway, and after receiving the DHCP Reques t message, the data gateway
  • the second access gateway returns a DHCP ACK message carrying the IP address, so that the second access gateway acquires an IP address assigned by the data gateway to the user terminal, so that the second access gateway uses the IP address as the
  • the user terminal establishes a data connection.
  • step 308 and step 310 the data gateway allocates the same IP address as that in step 304, and specifically may adopt any one of the following methods:
  • the first method the user terminal in step 307, the DHCP Di scovery message or the 309 DHCP Reques t message carries the IP address assigned by the data gateway in step 304, and the data gateway receives the DHCP Di scovery message or the DHCP Reques t message, and extracts the The IP address contained in the DHCP Di scovery message or the DHCP Reques t message, and the same IP address is assigned, and the assigned same IP address is sent to the user through the DHCP Offer message in step 308 or through the DHCP Ack message in step 310.
  • the user terminal may carry an IP address allocation indication identifier in the DHCP Di scovery message or the DHCP Reques t message in step 307, where the IP address is allocated.
  • the indication identifier is used to indicate that the data gateway allocates the same IP address as the first access connection.
  • step 304 after the data gateway allocates an IP address to the user terminal, the first access connection information is updated, and the IP address assigned to the user terminal is added.
  • the data gateway according to the user in step 308 or step 310 is performed according to the user.
  • the access connection information corresponding to the two access connections of the terminal is assigned the same IP address as in step 304.
  • the data gateway determines two connections of the first access gateway and the second access gateway.
  • the data gateway carries the IP address recorded in the first access connection information in a DHCP Offer message or a DHCP ACK message; or, the data gateway is based on the second access.
  • the connected data connection identifier is the same as the data connection identifier of the first access connection, thereby assigning the second access connection the same IP address as the first access connection.
  • the shellfish method further comprising:
  • Step 305B After receiving the DHCP Reques t message forwarded by the first access gateway and assigning an IP address to the user terminal, the data gateway sends the address update information to the policy control entity, where the address update information is carried to the user terminal. IP address. And the policy control entity updates the IP address information of the data connection corresponding to the user terminal according to the address update information;
  • Step 309B After receiving the DHCP Reques message forwarded by the second access gateway and assigning an IP address to the user terminal, the data gateway sends the address update information to the policy control entity, where the address update information carries the information assigned to the user terminal. IP address.
  • the policy control entity updates the IP address information of the data connection corresponding to the user terminal according to the address update information.
  • the data gateway notifies the policy control entity to update the IP address information corresponding to the user terminal. Specifically, the data gateway may notify the policy control entity after assigning the IP address to the user terminal in step 305 or step 309, respectively. .
  • the data gateway notifies the policy control entity to update the IP address information corresponding to the user terminal to distinguish the access connection or the access connection. For example, the data gateway notifies the policy control entity that the user terminal corresponds to the data connection (that is, the user terminal accesses the data network. Data connection) added an IP address, or the data gateway notifies the policy control entity An IP address has been added to the user's access connection (the first access connection or the second access connection).
  • the data gateway When the access connection is not distinguished, the data gateway only needs to notify the policy control entity to perform the IP address update of the data connection, that is, only one step in step 305B and step 309B is performed; when the access connection is distinguished, the data gateway can pass Step 305B and step 309B respectively notify the policy control entity to perform IP address update on the two access connections corresponding to the user terminal, and may also notify the policy control entity to update the IP addresses of the two access connections at one time.
  • the embodiment of the invention provides a multi-access data connection management method, in which the network and the user terminal use the DHCP method to complete the IP address allocation, so that the access gateways of multiple access connections can obtain the IP allocated to the user terminal.
  • the address is such that the service data of the user terminal can be transmitted through a tunnel of multiple access networks.
  • another method for managing multiple access data connections includes:
  • Step 401 The user terminal establishes a first access connection to the data network through the first access gateway, and the first access connection information is saved in the data gateway, where the first access connection information includes: a user terminal identifier, a data network The PDN ID, the access network type RAT, the data connection identifier, and the access gateway identifier, etc., need to be described, the first access connection information does not have to include all the foregoing contents.
  • the first access The connection information may include a part of the above;
  • Step 402 The user terminal sends a DHCP Di scovery message to the DHCP server to request an IP address by using the first access gateway.
  • a data connection may include multiple IP addresses, for example, one of IPv4 and IPv6.
  • the user terminal may send a DHCP Di scovery message through the first access gateway, requesting to allocate a new IP address.
  • Step 403 The data gateway is configured as a DHCP server to allocate an IP address to the user terminal, and the IP address is carried in the DHCP Offer message and sent to the first access gateway. At the same time, the data gateway can update the data connection information of the user terminal stored by the user.
  • the first access gateway forwards the DHCP Offer message to the user terminal;
  • Step 405 The data gateway sends a DHCP ACK (Answer) message to the user terminal to carry the IP address through the first access gateway, and confirms the IP address allocation.
  • a DHCP ACK Answer
  • Step 406 The user terminal receives the DHCP ACK message, confirms that the IP address allocated by the data gateway in step 403 is used, and the user terminal establishes a second access connection to access the data network through the second access gateway, and sends an access connection establishment or update request to the user terminal.
  • the second access gateway carries the acquired IP address, and the second access gateway forwards the access connection establishment or update request to the data gateway, and carries the acquired IP address;
  • Step 407 The data gateway increases the IP of the second access connection
  • the address information is sent to the second access gateway to establish an access connection establishment or update response, which is used to indicate that the establishment or update of the access connection is completed, and the second access gateway adds the IP address information of the second access connection to the user terminal.
  • the incoming connection setup or update response indicates that the establishment or update of the access connection is complete.
  • the second access gateway may also add the IP address information of the second access connection in step 406.
  • the shellfish method further comprising:
  • Step 404B After receiving the DHCP Reques t message forwarded by the first access gateway and assigning an IP address to the user terminal, the data gateway sends the address update information to the policy control entity, where the address update information is carried to the user terminal. IP address.
  • the policy control entity updates the IP address information of the data connection corresponding to the user terminal according to the address update information;
  • Step 406B After receiving the access connection establishment or update request sent by the second access gateway in step 406, the data gateway sends the address update information to the policy control entity, where the address update information carries the IP address assigned to the user terminal. . And the policy control entity updates the IP address information of the data connection corresponding to the user terminal according to the address update information;
  • the data gateway notifies the policy control entity to update the IP address information corresponding to the user terminal.
  • the data gateway may respectively be in step 404 or step 406.
  • the policy control entity is notified after the IP address is assigned.
  • the data gateway notifies the policy control entity to update the IP address information corresponding to the user terminal to distinguish the access connection or the access connection.
  • the data gateway notifies the policy control entity that the user terminal corresponds to the data connection (that is, the user accesses a data network).
  • the data connection adds an IP address, or the data gateway notifies the policy control entity that the user's access connection (the first access connection or the second access connection) has an IP address added.
  • the data gateway When the access connection is not distinguished, the data gateway only needs to notify the policy control entity to perform an IP address update, that is, only one step in step 404B and step 406B is performed; when distinguishing the access connection, the data gateway may pass step 404B and Step 406B notifies the policy control entity to perform IP address update on the two access connections corresponding to the user terminal, and may also notify the policy control entity to update the IP addresses of the two access connections at one time.
  • the embodiment of the invention provides a multi-access data connection management method, in which the network and the user terminal use the DHCP method to complete the IP address allocation, so that the access gateways of multiple access connections can obtain the IP allocated to the user terminal.
  • the address is such that the service data of the user terminal can be transmitted through a tunnel of multiple access networks.
  • the foregoing embodiment describes in detail how to perform data connection management in a multiple access network, so that multiple access gateways in a multiple access network can obtain an IP address assigned to a user terminal, and further, as shown in the figure
  • another multi-access data connection management method provided by the embodiment of the present invention, the user terminal accesses the data network through the first access gateway and the second access gateway, and specifically, the embodiment of the present invention provides A method for releasing data connections in a multi-access network, including:
  • Step 501 The user terminal sends a DHCP Release message to the data gateway DHCP server through the first access gateway, indicating that the allocated IP address is released. After the data gateway accepts the DHCP Release message as the DHCP server, the data gateway is released and allocated to the user terminal. IP address;
  • Step 502 The first access gateway updates the access connection with the user terminal and the data gateway, and deletes the released IP address information.
  • Step 503 The data gateway obtains the identifier of the second access gateway according to the access connection information of the two access connections recorded by itself, and sends the address update information to the second access gateway, indicating that the second access gateway deletes In addition to the IP address information of the corresponding second access connection;
  • the data gateway may associate the second access connection information according to the user terminal identifier and the data network identifier in the access connection information; or, the data gateway searches for the access connection information corresponding to the data connection according to the data connection identifier. And associating the second access connection information, so as to obtain an access gateway identifier corresponding to the second access connection.
  • Step 504 The second access gateway updates the access connection with the user terminal, and deletes the released IP address information.
  • the shell 'j if the multi-access network has the policy charging control function (PCC, Pol icy and Charging Control), the shell 'j:
  • the data gateway When the user terminal establishes a connection with the data network through the first access gateway and the second access gateway, the data gateway establishes a session with the policy control entity, and the policy control entity may record the user terminal identifier, the data network identifier PDN ID, and the IP address of the user terminal.
  • step 503 in the method can be replaced by the following two steps:
  • Step 503B After receiving the DHCP Release message sent by the first access gateway, the data gateway sends an address update request to the policy control entity, instructing the policy control entity to delete the IP address information of the corresponding data connection or the access connection.
  • Step 503C The policy control entity sends the address update information to the second access gateway, and instructs the second access gateway to delete the IP address information of the corresponding second access connection.
  • the embodiment of the present invention provides a data connection management method for multiple access, in which the IP address is released by using the DHCP mode between the network and the user terminal, so that the access gateways of multiple access connections can obtain the information that the IP address is released.
  • the access gateway of the multiple access connections no longer transmits the data packet of the IP address for the user terminal.
  • the embodiment of the present invention further provides a data gateway. As shown in FIG. 6, the user terminal accesses the same data gateway through multiple access gateways.
  • the data gateway provided by the embodiment of the present invention includes: a receiving unit 601, a first sending unit 602, and a second sending unit 603, where
  • the receiving unit 601 is configured to receive a DHCP Reques t message sent by the user terminal by using the first access gateway;
  • the first sending unit 602 is configured to return, by using the first access gateway, an allocated IP address to the user terminal;
  • the second sending unit 603 is configured to send the IP address to the user terminal to access other access gateways of the data gateway except the first access gateway.
  • the second sending unit 603 is specifically configured to associate, according to the user terminal identifier and the data network identifier, the access connection of the user terminal to the data gateway by using an access gateway other than the first access gateway; or, data
  • the gateway according to the data connection identifier, associates the user terminal with an access gateway of the data gateway by using an access gateway other than the first access gateway, and sends the IP address to another corresponding to the access connection.
  • Access gateway is specifically configured to associate, according to the user terminal identifier and the data network identifier, the access connection of the user terminal to the data gateway by using an access gateway other than the first access gateway; or, data
  • the gateway according to the data connection identifier, associates the user terminal with an access gateway of the data gateway by using an access gateway other than the first access gateway, and sends the IP address to another corresponding to the access connection.
  • Access gateway is specifically configured to associate, according to the user terminal identifier and the data network identifier, the access connection of the user terminal to the data gateway by using an access gateway
  • the receiving unit 601 is further configured to receive a DHCP Reques t message sent by the user terminal by using the other access gateway, where the DHCP Reques t message carries the IP address returned by the data gateway through the first access gateway;
  • the second sending unit 603 is specifically configured to return a DHCP ACK message to the other access gateway, where the DHCP ACK message carries the IP address.
  • the receiving unit 601 is further configured to receive, by the user terminal, the second sending unit 603, by using the other access gateway, specifically, when the user terminal identifier and the data network identifier corresponding to the message are connected to the first access When the user terminal identifier and the data network identifier in the information are the same, the IP address returned by the first access gateway to the user terminal is sent to the other access gateway; or the second sending unit 603 is specific. Used for the first connection of the data connection identifier corresponding to the message When the data connection identifiers in the connection information are the same, the IP addresses returned by the first access gateway to the user terminal are sent to the other access gateways;
  • the message is a DHCP Di scovery message or a DHCP Reques t message.
  • the receiving unit 601 is further configured to receive an access connection establishment or update request message sent by the user terminal by using the other access gateway, where the access connection establishment or update request message carries the data gateway through the first The IP address returned by the access gateway;
  • the second sending unit 603 is specifically configured to return an access connection establishment or an update response to the user terminal by using the other access gateway, where the access connection establishment or update response is used to indicate that the other access gateway records The IP address of the user terminal.
  • a policy control entity includes: an address update information receiving unit 701, a searching unit 702, and a third sending unit 703, where
  • the address update information receiving unit 701 is configured to receive address update information sent by the data gateway, where the address update information carries an IP address allocated by the data gateway for the user terminal;
  • the searching unit 702 is configured to: according to the session information corresponding to the user terminal, search for an identifier of the access gateway other than the first access gateway that the user terminal accesses the data gateway;
  • the third sending unit 703 is configured to send, to the other access gateway, the IP address allocated for the user terminal.
  • the policy control entity provided by the embodiment of the present invention further includes an update unit 704, configured to update an IP address of the data connection corresponding to the user terminal according to the address update information.
  • a multiple access data connection management system includes: at least two access gateways (a first access gateway 801, other access gateways 803), and a data gateway 802.
  • the user terminal accesses the data gateway 802 through the at least two access gateways,
  • a first access gateway 801 configured to forward a DHCP Reques t message sent by the user terminal to the data gateway;
  • a data gateway 802 configured to return, by using the first access gateway 801, an allocated IP address to the user terminal;
  • the first access gateway 801 is configured to receive the IP address allocated by the data gateway, and send the IP address to the user terminal.
  • the data gateway 802 is configured to notify the user terminal other than the first access gateway 801 to access the other access gateways 803 of the data gateway 802.
  • the embodiment of the present invention provides a multi-access data connection management method, system, and related device, such that when a user terminal accesses the same data gateway through multiple access gateways, the multiple access gateways may acquire user terminals.
  • the IP address so that the service data of the user terminal can be transmitted through the tunnel of multiple access networks.
  • the storage medium is, for example, R0M/RAM, a magnetic disk, an optical disk, or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention porte sur un procédé de gestion de connexion de données d'accès multiples, un système et un dispositif correspondants. Le procédé comprend les opérations suivantes : une passerelle de données reçoit un message de requête de protocole de configuration dynamique de l'hôte (DHCP) envoyé par un terminal utilisateur par l'intermédiaire d'une première passerelle d'accès (101); la passerelle de données renvoie une adresse de protocole Internet (IP) attribuée au terminal utilisateur par l'intermédiaire de la première passerelle d'accès (102); la passerelle de données envoie ladite adresse IP à d'autres passerelles d'accès, à l'exception de la première passerelle d'accès, qui sont utilisées par le terminal utilisateur pour accéder à la passerelle de données (103). L'invention permet à de multiples passerelles d'accès d'obtenir l'adresse IP du terminal utilisateur lorsque le terminal utilisateur accède à la même passerelle de données par l'intermédiaire de multiples passerelles d'accès, ce qui permet la transmission des données de service du terminal utilisateur par des tunnels de multiples réseaux d'accès.
PCT/CN2010/073046 2009-05-22 2010-05-21 Procédé de gestion de connexion de données d'accès multiples, système et dispositif correspondants WO2010133181A1 (fr)

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CN200910107614.9A CN101895525B (zh) 2009-05-22 2009-05-22 一种多接入的数据连接管理方法、系统及相关设备

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CN103379178A (zh) * 2012-04-13 2013-10-30 中兴通讯股份有限公司 地址分配方法及装置
CN103384365B (zh) * 2012-05-02 2016-12-14 中国移动通信集团湖南有限公司 一种网络接入方法、业务处理方法、系统及设备
CN103533666B (zh) * 2012-07-02 2019-06-11 中兴通讯股份有限公司 分组数据网络连接建立方法及装置
WO2015100570A1 (fr) * 2013-12-30 2015-07-09 华为技术有限公司 Procédé de détermination de tunnel gre, dispositif passerelle, et station d'accès
CN104869118B (zh) * 2015-05-15 2018-07-31 北京云杉世纪网络科技有限公司 一种基于动态隧道技术实现DDoS防御的方法及系统
EP3192300B1 (fr) * 2015-11-30 2020-11-25 Hewlett Packard Enterprise Development LP Communication via une interface réseau
WO2018040073A1 (fr) * 2016-09-02 2018-03-08 华为技术有限公司 Procédé, appareil et système de facturation de réseau à accès multiple
CN108934058B (zh) * 2017-05-25 2020-11-27 华为技术有限公司 一种通信方法及装置
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